Opc server request limitation

Unified Architecture topics related to OPC UA Specification, compliant behavior and any technical issues of OPC UA, like Security, Information Model, Companion Specs DI, PLCopen, ADI, ...

Moderator: Support Team

Post Reply
Full Member
Full Member
Posts: 7
Joined: 01 Apr 2016, 12:04

Opc server request limitation

Post by glawi00s »

It seems reasonable for an Opc client to ask the opc server for Request settings (e.g. Operation Timeout, MaxOperationPerRequest). Is it mandatory for a server to publish these properties? If yes, where in the namespace is it found? And where is it found in the OPC UA standard?

User avatar
Support Team
Hero Member
Hero Member
Posts: 2532
Joined: 18 Mar 2011, 15:09

Re: Opc server request limitation

Post by Support Team »


if a server has operational limits it should provide such information in it's information model.

If a server does not provide such nodes, the client may assume that the server has "no limits".
However, a client must be capable of handling errors on all service calls and on all operations and react properly.
Best regards
Unified Automation Support Team

Post Reply